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jairo330

  • 2 years ago

average rate of change (function)

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  1. jairo330
    • 2 years ago
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  2. jairo330
    • 2 years ago
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    help please

  3. nphuongsun93
    • 2 years ago
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    \[\frac{f(x)-f(1)}{x -1}\]

  4. jairo330
    • 2 years ago
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    then what?

  5. nphuongsun93
    • 2 years ago
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    then you will get your answer ~ you know what's f(x) and f(1)?

  6. jairo330
    • 2 years ago
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    no

  7. nphuongsun93
    • 2 years ago
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    f(x) = 3/(x+4) just as the question gives to find f(1), substitute x = 1 into f(x)

  8. jairo330
    • 2 years ago
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    ok

  9. nphuongsun93
    • 2 years ago
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    i will give you the answer in case ._., cos i gotta go \[f(x) = \frac{3}{x+4}\]\[f(1) = \frac{3}5\]\[\huge \frac{\frac{3}{x+4}-\frac{3}{5}}{x-1}\]then solve algebraically you will get\[\frac{-3}{5x+20}\]

  10. jairo330
    • 2 years ago
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    thank you

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